Synonyms to have a theory

hypothesize, analyze, apply reason, deduce, entertain a theory, espouse a theory, generalize, infer, intellectualize, logicalize, logicize, philosophize, provide a rationale, rationalize, reason, speculate, syllogize, synthesize, theorize, use reason, be abstracted, be caught short, be short, belong, brood, bucket, bucketshop, buy in, buy into, call, cast a horoscope, cast a nativity, cast lots, cerebrate, chew over, chew the cud, cogitate, consider, contemplate, cut lots, cut the cards, debate, deliberate, deposit margin, digest, divine, dope, dope out, dowse for water, draw lots, draw straws, evaluate, excogitate, financier, forebode, forecast, foresee, foretell, fortune-tell, gamble, game, go long, guess, hariolate, hold on, introspect, invest, invest in, judge, lay out money, lot, make a killing, make a prediction, make a prognosis, make a prophecy, make a scoop, make an investment, margin up, match coins, meditate, miss the market, mull over, muse, operate, overstay the market, perpend, place, play, play a